REVO America R16DVR4-2T 16 Channel Digital Video Recorder with 0. 12 - RJ12, 4 BNC Cable Inputs 480IPS and 2TB Hard Drive 16 Channel DVR in compact size :12 RJ-12 and 4 BNC Input Connectors, Records up to 480 NTSC Images per Second , 2TB HDD (Expandable to 3TB) REVO Summary Notification will email you a photo of camera view anytime motion is detected. Fully Networkable for Remote Viewing and/or Access . Continuous Recording in Disk Recycle Mode Records while Playing Back and Transmitting to Remote Site, Advanced user interface for easy 1-2-3 network set up Multiple Recording Modes (Time-Lapse, Pre-Event, Motion, Alarm and Panic), Multiple Search Engines (Date/Time, Event, Record Table) Audio Monitoring Capable Self-Diagnostics with Automatic Notification including Hard Disk Drive S.M.A.R.T. Protocol